I finished the Amiga version of DotC. I wouldn't say it was the hardest game I ever played. And I was about 9 years old
If there was ever a game that kept me enthralled and had loads of replayability, that was the game. Ultima 4 had the same effect
I didn't like the jousting either, although there was a certain way to do it. I liked using the catapult and the swordfights.
There was a cheat for it as well, which let you get 1024 knights (I think). I was never able to get it working, despite it being reported in all the Amiga magazines.